search of new physics in KKKs decays of neutral B mesons

• Project/Area Number: 20740159
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: High Energy Accelerator Research Organization
• Principal Investigator: SUMISAWA Kazutaka High Energy Accelerator Research Organization, 素粒子原子核研究所, 助教 (40379293)
• Project Period (FY): 2008 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
• Keywords: フレーバー物理 / 素粒子実験

Research Abstract

We report a measurement of CP violation asymmetries in B^0→K^+K^-Ks decays with a time-dependent Dalitz approach. B^0→K^+K^-Ks decay channels consist of several intermediate stats. It is expected that the sensitivity to CP violating parameters would improve in a measurement using the time-dependent Dalitz plot distribution because of the correct treatment of interferences between various resonant and non-resonant process.

Research Products

• [Journal Article] Measurement of CP violating a symmetries in B0→K+K-K_S decays with a time-dependent Dalitz approach (2010)
  • Author(s): 中浜優、住澤一高, Belle collaboration
  • Journal Title: Phys ical Review D 82 Pages: 73001-73001
  • Peer Reviewed
• [Journal Article] Measurement of CP violating asymmetries in B0→K^+K^-Ks decays with a time-dependent Dalitz approach (2010)
  • Author(s): 中浜優、住澤一高, Belle colabolation
  • Journal Title: Physical Review D Volume: 82 Pages: 73011-73022
  • Peer Reviewed
• [Presentation] 時間依存性とDalitz plotを用いたB0->KKKs崩壊過程におけるCP非対称度の測定 (2010)
  • Author(s): 住澤一高、中浜優
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 九州工業大学戸畑キャンパス
  • Year and Date: 2010-09-13
• [Presentation] 時間依存性とDalitz plotを用いたB0->KKKs崩壊過程におけるCP非対称度の測定 (2010)
  • Author(s): 住澤一高、中浜優
  • Organizer: 日本物理学会 2010年秋季大会
  • Place of Presentation: 九州工業大学戸畑キャンパス
  • Year and Date: 2010-09-13